Question 1

When is the thymus gland most active?

Accepted Answer

A)  From ages 25-45 years
B)  From childhood to puberty
C)  From puberty to adulthood
D)  From ages 45-65 years
E)  From age 65 years until deathF) A) and B)
G) B) and C)

Question 2

The composition of lymph is most similar to

Accepted Answer

A)  whole blood.
B)  blood plasma.
C)  interstitial fluid.
D)  extracellular fluid.
E)  intracellular fluid.F) C) and D)
G) A) and E)

Question 3

Lymph nodes may be found individually,or clustered in specific regions of the body.Which cluster of lymph nodes receives lymph from the head and neck?

Accepted Answer

A)  Inguinal lymph nodes
B)  Cervical lymph nodes
C)  Thoracic lymph nodes
D)  Axillary lymph nodes
E)  Abdominal lymph nodesF) C) and E)
G) B) and E)

Question 4

Where do T-lymphocytes develop immunocompetence?

Accepted Answer

A)  Spleen
B)  Red bone marrow
C)  Lymph nodes
D)  Thymus gland
E)  BloodF) B) and E)
G) A) and D)

Question 5

The anteromedial border of the spleen

Accepted Answer

A)  is concave.
B)  contains the hilum.
C)  is also called the visceral surface.
D)  is where the splenic artery enters.
E)  All of the choices are correct.F) None of the above
G) A) and D)

Question 6

Which is not a type of T-lymphocyte?

Accepted Answer

A)  Helper T-lymphocyte
B)  Cytotoxic T-lymphocyte
C)  Memory T-lymphocyte
D)  Plasma T-lymphocyte
E)  Suppressor T-lymphocyteF) A) and B)
G) A) and C)

Question 7

The primary lymph sacs eventually develop into the

Accepted Answer

A)  lymph nodes.
B)  spleen.
C)  spleen and thymus gland.
D)  thoracic duct and right lymphatic duct.
E)  tonsils and MALT.F) D) and E)
G) A) and E)

Question 8

Though some lymphocytes are housed in lymphatic organs,most circulate continuously in the bloodstream.

Accepted Answer

A) True 
 B)False

Question 9

What is the function of nurse cells in the thymus gland?

Accepted Answer

A)  Nourish developing T-lymphocytes
B)  Transport mature T-lymphocytes to the bloodstream
C)  Secrete thymic hormones
D)  Destroy moribund T-lymphocytes
E)  Transform helper T-lymphocytes into cytotoxic T-lymphocytesF) A) and C)
G) A) and E)

Question 10

Which is not correct regarding the white pulp of the spleen?

Accepted Answer

A)  Its cells include T-lymphocytes,B-lymphocytes,and macrophages.
B)  Its cells are arranged in clusters that are circular in shape.
C)  Its cells can initiate the immune response.
D)  It serves as a blood reservoir.
E)  Each cluster of white pulp is surrounded by red pulp.F) All of the above
G) A) and B)

Question 11

Lymph

Accepted Answer

A)  is found only when there is a pathological condition that allows it to leak from capillaries.
B)  is excess interstitial fluid.
C)  is filtered by the spleen.
D)  is synthesized by the lymphoid organs.
E)  All of the choices are correct.F) A) and C)
G) B) and E)

Question 12

Lymphatic capillaries are held in place by _____________ filaments that attach the endothelial cells to nearby structures.

Accepted Answer

The answer of Lymphatic capillaries are held in place by...

Question 13

Lymphatic capillaries

Accepted Answer

A)  are open at both ends.
B)  are smaller in diameter than blood capillaries.
C)  have wide gaps between endothelial cells.
D)  lack a basement membrane.
E)  are abundant in epithelial tissues.F) All of the above
G) A) and E)

Question 14

Which of the lymphatic trunks drain into the cisterna chyli?

Accepted Answer

A)  Intestinal trunks
B)  Lumbar trunks
C)  Intestinal trunks and lumbar trunks
D)  Subclavian trunks and jugular trunks
E)  Bronchomediastinal trunks and intestinal trunksF) D) and E)
G) B) and D)

Question 15

What are the five main classes of immunoglobulins found in humans?

Accepted Answer

A)  IgA,IgC,IgE,IgG,IgI
B)  IgD,IgE,IgG,IgM,IgS
C)  IgB,IgD,IgE,IgG,IgM
D)  IgA,IgB,IgC,IgD,IgE
E)  IgA,IgD,IgE,IgG,IgMF) All of the above
G) A) and B)

Question 16

Which lymphatic structures form from the pharyngeal pouches?

Accepted Answer

A)  Palatine tonsils
B)  Lingual tonsils
C)  Thymus gland
D)  Palatine tonsils and thymus gland
E)  Palatine,pharyngeal,and lingual tonsilsF) All of the above
G) A) and D)

Question 17

Helper T-lymphocytes primarily contain the CD8 coreceptor.

Accepted Answer

A) True 
 B)False

Question 18

Which is not correct regarding lymph nodes?

Accepted Answer

A)  They are covered by a connective tissue capsule.
B)  They contain a network of lymphatic sinuses.
C)  Each node has an outer cortex and inner medulla.
D)  Connective tissue bands called tendineae divide nodes.
E)  Lymphatic nodules produce lymphocytes.F) B) and E)
G) None of the above

Question 19

Developmentally,the spleen forms from

Accepted Answer

A)  ectoderm.
B)  mesoderm.
C)  endoderm.
D)  aggregations of lymphatic cells.
E)  MALT.F) A) and C)
G) B) and E)

Question 20

The germinal center of a lymphatic nodule contains proliferating B-lymphocytes and macrophages.

Accepted Answer

A) True 
 B)False

Exam 24: Lymphatic System

The composition of lymph is most similar to

Correct AnswerverifiedShow Answer

Helper T-lymphocytes primarily contain the CD8 coreceptor.

Correct AnswerverifiedShow Answer

Lymph nodes may be found individually,or clustered in specific regions of the body.Which cluster of lymph nodes receives lymph from the head and neck?

Correct AnswerverifiedShow Answer

What are the five main classes of immunoglobulins found in humans?

Correct AnswerverifiedShow Answer

When is the thymus gland most active?

Correct AnswerverifiedShow Answer

Where do T-lymphocytes develop immunocompetence?

Correct AnswerverifiedShow Answer

Which of the lymphatic trunks drain into the cisterna chyli?

Correct AnswerverifiedShow Answer

Developmentally,the spleen forms from

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Though some lymphocytes are housed in lymphatic organs,most circulate continuously in the bloodstream.

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The anteromedial border of the spleen

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Which is not a type of T-lymphocyte?

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Which is not correct regarding lymph nodes?

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What is the function of nurse cells in the thymus gland?

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The germinal center of a lymphatic nodule contains proliferating B-lymphocytes and macrophages.

Correct AnswerverifiedShow Answer

Lymph

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Lymphatic capillaries

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Which is not correct regarding the white pulp of the spleen?

Correct AnswerverifiedShow Answer

Lymphatic capillaries are held in place by _____________ filaments that attach the endothelial cells to nearby structures.

Correct AnswerverifiedShow Answer

The primary lymph sacs eventually develop into the

Correct AnswerverifiedShow Answer

Which lymphatic structures form from the pharyngeal pouches?

Correct AnswerverifiedShow Answer

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